tofsee | b186eda75a3fd90163c798cb6b11f457f04175e71e09f86c0ec7037c56db55d9

Analysis

max time kernel
143s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 02:38

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General

Target

c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe
Size

10.3MB
MD5

c5827bccfff621de9248e02b015d9522
SHA1

e8be59c1d0523f26497bffd90b2c72c4377e9bb6
SHA256

b186eda75a3fd90163c798cb6b11f457f04175e71e09f86c0ec7037c56db55d9
SHA512

4a0caae7f03ce30426395061706c4be51e11f0d53624b0ed115b3861d5264c462ccd1c1e7a6ab30fe4b2140fee898673980f0ab104799c663c1cde9acfc48568
SSDEEP

49152:2cUGb2222222222222222222222222222222222222222222222222222222222P:2cU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qbkkmrgf = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2612	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\qbkkmrgf\ImagePath = "C:\\Windows\\SysWOW64\\qbkkmrgf\\rpyzietp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2700	rpyzietp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 2852	2700	rpyzietp.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2840	sc.exe
2580	sc.exe
2616	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rpyzietp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2912	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	31
PID 1992 wrote to memory of 2912	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	31
PID 1992 wrote to memory of 2912	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	31
PID 1992 wrote to memory of 2912	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	31
PID 1992 wrote to memory of 2104	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	33
PID 1992 wrote to memory of 2104	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	33
PID 1992 wrote to memory of 2104	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	33
PID 1992 wrote to memory of 2104	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	33
PID 1992 wrote to memory of 2840	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	35
PID 1992 wrote to memory of 2840	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	35
PID 1992 wrote to memory of 2840	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	35
PID 1992 wrote to memory of 2840	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	35
PID 1992 wrote to memory of 2580	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	37
PID 1992 wrote to memory of 2580	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	37
PID 1992 wrote to memory of 2580	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	37
PID 1992 wrote to memory of 2580	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	37
PID 1992 wrote to memory of 2616	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	39
PID 1992 wrote to memory of 2616	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	39
PID 1992 wrote to memory of 2616	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	39
PID 1992 wrote to memory of 2616	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	39
PID 1992 wrote to memory of 2612	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	42
PID 1992 wrote to memory of 2612	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	42
PID 1992 wrote to memory of 2612	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	42
PID 1992 wrote to memory of 2612	1992	c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe	42
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43
PID 2700 wrote to memory of 2852	2700	rpyzietp.exe	43

C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qbkkmrgf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rpyzietp.exe" C:\Windows\SysWOW64\qbkkmrgf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qbkkmrgf binPath= "C:\Windows\SysWOW64\qbkkmrgf\rpyzietp.exe /d\"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qbkkmrgf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qbkkmrgf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2612

C:\Windows\SysWOW64\qbkkmrgf\rpyzietp.exe
C:\Windows\SysWOW64\qbkkmrgf\rpyzietp.exe /d"C:\Users\Admin\AppData\Local\Temp\c5827bccfff621de9248e02b015d9522_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rpyzietp.exe

Filesize
14.2MB

MD5
34a9774048f434f2db398757bf6d2bf7

SHA1
a7f25451f9219be051dc6527cda3ff5b9e7d21a8

SHA256
a7ba6c35cd30d8b66ecf9f59b085d24aec4b71266b4d6a53c78f75f9e56d02a5

SHA512
ec7abe77eef287d12316ff2972f4e59905dd9098f56d941e3b82ce86b75618ba980bce7c66d914de2154969520fd3ed601d9b0b873d89bdb4a11fc50d6629de3

Download Submit
memory/1992-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1992-13-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-12-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2700-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2852-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads